Avian influenza is a group of infectious diseases in birds caused by avian-adapted influenza A viruses (Orthomyxoviridae), characterized by segmented, negative-sense, single-stranded RNA genomes and diverse hemagglutinin (H) and neuraminidase (N) subtypes. Strains are classified as low or highly pathogenic based on molecular determinants, particularly in the hemagglutinin cleavage site, and associated clinical severity in poultry. Research topics include viral ecology in wild waterfowl reservoirs, transmission dynamics at the wildlife–poultry–human interface, molecular evolution and reassortment, host-range restriction mechanisms, immune escape, and risk assessment for zoonotic spillover and pandemic potential.
Bird flu cases are rising rapidly in the U.S. and around the world. A new study traces how the disease spread over the last two decades from Asia to Europe, Africa and the Americas. New bird species, from pelicans to peregrine ...
Environment
Mar 25, 2025
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39
Recurring influenza epidemics, such as the one during World War I, the Middle East respiratory syndrome coronavirus (MERS-CoV) outbreak in the 2010s, and the COVID-19 pandemic in recent years have made it evident that contagious ...
Bio & Medicine
Nov 7, 2023
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157
